IODP Expedition 359 Source rock analyzer (SRA)

SRA is run for the purpose of safety monitoring and yields information about thermal maturation and source of hydrocarbons, as well as petroleum potential, in the sediment or rocks at a drilled site. Samples are heated in a pyrolysis oven in an inert atmosphere to quantitatively and selectively determine free hydrocarbons contained in the sample and the hydrogen- and oxygen-containing compounds that are volatilized during the cracking of unextractable organic matter in the sample (kerogen).SRA 专为安全监测工作而运行，可提供钻井位点处沉积物与岩石中的热成熟度、烃源以及石油潜力相关信息。将样品置于惰性气氛下的热解炉中加热，以定量且选择性地测定样品内的游离烃类，以及样品中不可萃取有机质，即干酪根（kerogen），裂解过程中挥发产生的含氢、含氧化合物。